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28                                                JPJLOKA   INIMCA,
the most important groups of phenomena requiring elucida-
tion and careful description arc,I. The changes that aeeom-
pany the growth of individual organs from the seedling state
to the decaying plant. 2. Variations in the same organ*, as
displayed in different parts of the same individual. 3, Varia-
tions in the development and distribution of the sexual or-
gans in plants with unisexual flowers, and in bisexual plants,
It is to our neglect, and often to our ignorance, of the
changes in form that so many organs undergo during the dif-
ferent stages of the life of tho individual, or of the different
form under which they appear in different parts of the same
individual, that we owe so many of the spurious species
wl ich crowd the pages of our systematic works; and it is
to the want of that early training to habits of observation in
the field, which we have so strenuously advocated, that is to
be attributed the rarity of that power of diserhnination be-
tween essential and non-essential characters, which alone eau
make an observer a sound systematise We tluT*tiv ear
neatly recommend to the Indian botanist the detailed stiuiy
of individuals and their organs*, with the vie\\ of determin-
ing their limits of variation. In reluthc <-isse especially, the
observer will find immense variation; for, unlike the utt'mial
creation, proportional dimensions are of small moment in the
vegetable kingdom, This fact, so familiar to the botanist uf
experience, is always a puzzle to the zoologist, who fancies Iu:
perceives a vagueness and waut of exactness hi all botuutVstl
writhxgs (except in those of the too numerous elus* that make
a parade of measuring to lines organs that vary by indict),
that contrasts unfavourably \vith descriptiut xumogy, Svm
metry again is only a relative term amongwt plants, for e\ett
such leaves as grow in pairs arc never aliki?, ami often differ
much in form, texture, and colour; whilst tho variow nepal*,
petals, etc., of an individual flower, never HO exactly <wre
fcpoud, as the relative members of an animal do; uu<l thtw nre
Mtt VYighL awl Aiwtt'x 'IVoUvomuV p. wJu, thw |H>im in >|H<piiiU\
ujion, and a wurrnug givvfi io ivgiwucw, wluMi hi* bctni iou ii(f U